content: /*
   * 支付宝开放平台API
   * 支付宝开放平台v3协议文档
   *
   * The version of the OpenAPI document: 2024-04-07
   * 
   *
   * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
   * https://openapi-generator.tech
   * Do not edit the class manually.
   */
  
  
  package com.alipay.v3.model;
  
  import java.util.Objects;
  import java.util.Arrays;
  import com.alipay.v3.model.MerchantActivityVoucherInfo;
  import com.google.gson.TypeAdapter;
  import com.google.gson.annotations.JsonAdapter;
  import com.google.gson.annotations.SerializedName;
  import com.google.gson.stream.JsonReader;
  import com.google.gson.stream.JsonWriter;
  import io.swagger.annotations.ApiModel;
  import io.swagger.annotations.ApiModelProperty;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.gson.Gson;
  import com.google.gson.GsonBuilder;
  import com.google.gson.JsonArray;
  import com.google.gson.JsonDeserializationContext;
  import com.google.gson.JsonDeserializer;
  import com.google.gson.JsonElement;
  import com.google.gson.JsonObject;
  import com.google.gson.JsonParseException;
  import com.google.gson.TypeAdapterFactory;
  import com.google.gson.reflect.TypeToken;
  
  import java.lang.reflect.Type;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Map.Entry;
  import java.util.Set;
  
  import com.alipay.v3.JSON;
  
  /**
   * KoubeiMarketingCampaignItemMerchantactivityCreateModel
   */
  @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
  public class KoubeiMarketingCampaignItemMerchantactivityCreateModel {
    public static final String SERIALIZED_NAME_COUNT_LIMIT = "count_limit";
    @SerializedName(SERIALIZED_NAME_COUNT_LIMIT)
    private Integer countLimit;
  
    public static final String SERIALIZED_NAME_COUNT_LIMIT_PER_DAY = "count_limit_per_day";
    @SerializedName(SERIALIZED_NAME_COUNT_LIMIT_PER_DAY)
    private Integer countLimitPerDay;
  
    public static final String SERIALIZED_NAME_COUNT_LIMIT_PER_USER = "count_limit_per_user";
    @SerializedName(SERIALIZED_NAME_COUNT_LIMIT_PER_USER)
    private Integer countLimitPerUser;
  
    public static final String SERIALIZED_NAME_COUNT_LIMIT_PER_USER_PER_DAY = "count_limit_per_user_per_day";
    @SerializedName(SERIALIZED_NAME_COUNT_LIMIT_PER_USER_PER_DAY)
    private Integer countLimitPerUserPerDay;
  
    public static final String SERIALIZED_NAME_CROWD = "crowd";
    @SerializedName(SERIALIZED_NAME_CROWD)
    private String crowd;
  
    public static final String SERIALIZED_NAME_DEDUCT_AMOUNT = "deduct_amount";
    @SerializedName(SERIALIZED_NAME_DEDUCT_AMOUNT)
    private String deductAmount;
  
    public static final String SERIALIZED_NAME_EXTERNAL_CALLBACK_URL = "external_callback_url";
    @SerializedName(SERIALIZED_NAME_EXTERNAL_CALLBACK_URL)
    private String externalCallbackUrl;
  
    public static final String SERIALIZED_NAME_EXTERNAL_UNIQUE_ID = "external_unique_id";
    @SerializedName(SERIALIZED_NAME_EXTERNAL_UNIQUE_ID)
    private String externalUniqueId;
  
    public static final String SERIALIZED_NAME_GMT_END = "gmt_end";
    @SerializedName(SERIALIZED_NAME_GMT_END)
    private String gmtEnd;
  
    public static final String SERIALIZED_NAME_GMT_START = "gmt_start";
    @SerializedName(SERIALIZED_NAME_GMT_START)
    private String gmtStart;
  
    public static final String SERIALIZED_NAME_ITEM_IDS = "item_ids";
    @SerializedName(SERIALIZED_NAME_ITEM_IDS)
    private List<String> itemIds = null;
  
    public static final String SERIALIZED_NAME_MEMO = "memo";
    @SerializedName(SERIALIZED_NAME_MEMO)
    private String memo;
  
    public static final String SERIALIZED_NAME_MIN_COST = "min_cost";
    @SerializedName(SERIALIZED_NAME_MIN_COST)
    private String minCost;
  
    public static final String SERIALIZED_NAME_OBTAIN_MANUALLY = "obtain_manually";
    @SerializedName(SERIALIZED_NAME_OBTAIN_MANUALLY)
    private Boolean obtainManually;
  
    public static final String SERIALIZED_NAME_VOUCHER_INFO = "voucher_info";
    @SerializedName(SERIALIZED_NAME_VOUCHER_INFO)
    private MerchantActivityVoucherInfo voucherInfo;
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel() { 
    }
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel countLimit(Integer countLimit) {
      
      this.countLimit = countLimit;
      return this;
    }
  
     /**
     * 活动优惠次数限制，必须设置。 说明：活动优惠总次数限制不能小于1，且不能大于99999999。
     * @return countLimit
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "99", value = "活动优惠次数限制，必须设置。 说明：活动优惠总次数限制不能小于1，且不能大于99999999。")
  
    public Integer getCountLimit() {
      return countLimit;
    }
  
  
    public void setCountLimit(Integer countLimit) {
      this.countLimit = countLimit;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel countLimitPerDay(Integer countLimitPerDay) {
      
      this.countLimitPerDay = countLimitPerDay;
      return this;
    }
  
     /**
     * 活动优惠单日次数限制。 说明：活动优惠单日次数限制不能为负数，不能大于99999999；0表示不限制。 
     * @return countLimitPerDay
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "99", value = "活动优惠单日次数限制。 说明：活动优惠单日次数限制不能为负数，不能大于99999999；0表示不限制。 ")
  
    public Integer getCountLimitPerDay() {
      return countLimitPerDay;
    }
  
  
    public void setCountLimitPerDay(Integer countLimitPerDay) {
      this.countLimitPerDay = countLimitPerDay;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel countLimitPerUser(Integer countLimitPerUser) {
      
      this.countLimitPerUser = countLimitPerUser;
      return this;
    }
  
     /**
     * 活动单用户限次。 说明：活动单用户总限次不能为负数，不能大于999。0表示不限制。
     * @return countLimitPerUser
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "99", value = "活动单用户限次。 说明：活动单用户总限次不能为负数，不能大于999。0表示不限制。")
  
    public Integer getCountLimitPerUser() {
      return countLimitPerUser;
    }
  
  
    public void setCountLimitPerUser(Integer countLimitPerUser) {
      this.countLimitPerUser = countLimitPerUser;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel countLimitPerUserPerDay(Integer countLimitPerUserPerDay) {
      
      this.countLimitPerUserPerDay = countLimitPerUserPerDay;
      return this;
    }
  
     /**
     * 活动单用户单日限次。 说明：活动单用户单日限次不能为负数，不能大于999。0表示不限制。
     * @return countLimitPerUserPerDay
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "99", value = "活动单用户单日限次。 说明：活动单用户单日限次不能为负数，不能大于999。0表示不限制。")
  
    public Integer getCountLimitPerUserPerDay() {
      return countLimitPerUserPerDay;
    }
  
  
    public void setCountLimitPerUserPerDay(Integer countLimitPerUserPerDay) {
      this.countLimitPerUserPerDay = countLimitPerUserPerDay;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel crowd(String crowd) {
      
      this.crowd = crowd;
      return this;
    }
  
     /**
     * 群规则，枚举支持： * DEFAULT： 全部用户； * ONLINE_NEWCOMER：在线购买新人； * MEMBER：会员。
     * @return crowd
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "DEFAULT", value = "群规则，枚举支持： * DEFAULT： 全部用户； * ONLINE_NEWCOMER：在线购买新人； * MEMBER：会员。")
  
    public String getCrowd() {
      return crowd;
    }
  
  
    public void setCrowd(String crowd) {
      this.crowd = crowd;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel deductAmount(String deductAmount) {
      
      this.deductAmount = deductAmount;
      return this;
    }
  
     /**
     * 代金券面额，单位为元。 说明：代金券面额格式必须为#.##，代金券面额需小于49999。
     * @return deductAmount
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "5.00", value = "代金券面额，单位为元。 说明：代金券面额格式必须为#.##，代金券面额需小于49999。")
  
    public String getDeductAmount() {
      return deductAmount;
    }
  
  
    public void setDeductAmount(String deductAmount) {
      this.deductAmount = deductAmount;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel externalCallbackUrl(String externalCallbackUrl) {
      
      this.externalCallbackUrl = externalCallbackUrl;
      return this;
    }
  
     /**
     * 外部回调地址，最大字符数不能超过500。
     * @return externalCallbackUrl
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "xxxx", value = "外部回调地址，最大字符数不能超过500。")
  
    public String getExternalCallbackUrl() {
      return externalCallbackUrl;
    }
  
  
    public void setExternalCallbackUrl(String externalCallbackUrl) {
      this.externalCallbackUrl = externalCallbackUrl;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel externalUniqueId(String externalUniqueId) {
      
      this.externalUniqueId = externalUniqueId;
      return this;
    }
  
     /**
     * 外部id，需保证同一账户下唯一。 说明：最小长度不能低于13，最大长度不能超过64。
     * @return externalUniqueId
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "4b203fe6c11548bcabd8da5bb087a83b", value = "外部id，需保证同一账户下唯一。 说明：最小长度不能低于13，最大长度不能超过64。")
  
    public String getExternalUniqueId() {
      return externalUniqueId;
    }
  
  
    public void setExternalUniqueId(String externalUniqueId) {
      this.externalUniqueId = externalUniqueId;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel gmtEnd(String gmtEnd) {
      
      this.gmtEnd = gmtEnd;
      return this;
    }
  
     /**
     * 活动结束时间。活动结束时间需大于活动开始时间。格式为\&quot;yyyy-MM-dd HH:mm:ss\&quot;。
     * @return gmtEnd
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2018-12-26 21:07:23", value = "活动结束时间。活动结束时间需大于活动开始时间。格式为\"yyyy-MM-dd HH:mm:ss\"。")
  
    public String getGmtEnd() {
      return gmtEnd;
    }
  
  
    public void setGmtEnd(String gmtEnd) {
      this.gmtEnd = gmtEnd;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel gmtStart(String gmtStart) {
      
      this.gmtStart = gmtStart;
      return this;
    }
  
     /**
     * 活动开始时间。格式为\&quot;yyyy-MM-dd HH:mm:ss\&quot;。
     * @return gmtStart
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "2017-12-26 21:07:23", value = "活动开始时间。格式为\"yyyy-MM-dd HH:mm:ss\"。")
  
    public String getGmtStart() {
      return gmtStart;
    }
  
  
    public void setGmtStart(String gmtStart) {
      this.gmtStart = gmtStart;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel itemIds(List<String> itemIds) {
      
      this.itemIds = itemIds;
      return this;
    }
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel addItemIdsItem(String itemIdsItem) {
      if (this.itemIds == null) {
        this.itemIds = new ArrayList<>();
      }
      this.itemIds.add(itemIdsItem);
      return this;
    }
  
     /**
     * 商品列表。 说明：参加活动的商品列表不能为空，最大个数不能超过100。
     * @return itemIds
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "[\"2088xxxxx\",\"2088xxxx\"]", value = "商品列表。 说明：参加活动的商品列表不能为空，最大个数不能超过100。")
  
    public List<String> getItemIds() {
      return itemIds;
    }
  
  
    public void setItemIds(List<String> itemIds) {
      this.itemIds = itemIds;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel memo(String memo) {
      
      this.memo = memo;
      return this;
    }
  
     /**
     * 备注。 说明：备注最大字符数不能超过500。
     * @return memo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "备注", value = "备注。 说明：备注最大字符数不能超过500。")
  
    public String getMemo() {
      return memo;
    }
  
  
    public void setMemo(String memo) {
      this.memo = memo;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel minCost(String minCost) {
      
      this.minCost = minCost;
      return this;
    }
  
     /**
     * 使用门槛，即满 min_cost 元可用，使用门槛必须大于券面额，单位为元。 说明：使用门槛格式必须为#.##。
     * @return minCost
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "5.00", value = "使用门槛，即满 min_cost 元可用，使用门槛必须大于券面额，单位为元。 说明：使用门槛格式必须为#.##。")
  
    public String getMinCost() {
      return minCost;
    }
  
  
    public void setMinCost(String minCost) {
      this.minCost = minCost;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel obtainManually(Boolean obtainManually) {
      
      this.obtainManually = obtainManually;
      return this;
    }
  
     /**
     * 是否手动领取，本期只支持true
     * @return obtainManually
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(example = "true", value = "是否手动领取，本期只支持true")
  
    public Boolean getObtainManually() {
      return obtainManually;
    }
  
  
    public void setObtainManually(Boolean obtainManually) {
      this.obtainManually = obtainManually;
    }
  
  
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel voucherInfo(MerchantActivityVoucherInfo voucherInfo) {
      
      this.voucherInfo = voucherInfo;
      return this;
    }
  
     /**
     * Get voucherInfo
     * @return voucherInfo
    **/
    @javax.annotation.Nullable
    @ApiModelProperty(value = "")
  
    public MerchantActivityVoucherInfo getVoucherInfo() {
      return voucherInfo;
    }
  
  
    public void setVoucherInfo(MerchantActivityVoucherInfo voucherInfo) {
      this.voucherInfo = voucherInfo;
    }
  
    /**
     * A container for additional, undeclared properties.
     * This is a holder for any undeclared properties as specified with
     * the 'additionalProperties' keyword in the OAS document.
     */
    private Map<String, Object> additionalProperties;
  
    /**
     * Set the additional (undeclared) property with the specified name and value.
     * If the property does not already exist, create it otherwise replace it.
     *
     * @param key name of the property
     * @param value value of the property
     * @return the KoubeiMarketingCampaignItemMerchantactivityCreateModel instance itself
     */
    public KoubeiMarketingCampaignItemMerchantactivityCreateModel putAdditionalProperty(String key, Object value) {
      if (this.additionalProperties == null) {
          this.additionalProperties = new HashMap<String, Object>();
      }
      this.additionalProperties.put(key, value);
      return this;
    }
  
    /**
     * Return the additional (undeclared) property.
     *
     * @return a map of objects
     */
    public Map<String, Object> getAdditionalProperties() {
      return additionalProperties;
    }
  
    /**
     * Return the additional (undeclared) property with the specified name.
     *
     * @param key name of the property
     * @return an object
     */
    public Object getAdditionalProperty(String key) {
      if (this.additionalProperties == null) {
          return null;
      }
      return this.additionalProperties.get(key);
    }
  
  
    @Override
    public boolean equals(Object o) {
      if (this == o) {
        return true;
      }
      if (o == null || getClass() != o.getClass()) {
        return false;
      }
      KoubeiMarketingCampaignItemMerchantactivityCreateModel koubeiMarketingCampaignItemMerchantactivityCreateModel = (KoubeiMarketingCampaignItemMerchantactivityCreateModel) o;
      return Objects.equals(this.countLimit, koubeiMarketingCampaignItemMerchantactivityCreateModel.countLimit) &&
          Objects.equals(this.countLimitPerDay, koubeiMarketingCampaignItemMerchantactivityCreateModel.countLimitPerDay) &&
          Objects.equals(this.countLimitPerUser, koubeiMarketingCampaignItemMerchantactivityCreateModel.countLimitPerUser) &&
          Objects.equals(this.countLimitPerUserPerDay, koubeiMarketingCampaignItemMerchantactivityCreateModel.countLimitPerUserPerDay) &&
          Objects.equals(this.crowd, koubeiMarketingCampaignItemMerchantactivityCreateModel.crowd) &&
          Objects.equals(this.deductAmount, koubeiMarketingCampaignItemMerchantactivityCreateModel.deductAmount) &&
          Objects.equals(this.externalCallbackUrl, koubeiMarketingCampaignItemMerchantactivityCreateModel.externalCallbackUrl) &&
          Objects.equals(this.externalUniqueId, koubeiMarketingCampaignItemMerchantactivityCreateModel.externalUniqueId) &&
          Objects.equals(this.gmtEnd, koubeiMarketingCampaignItemMerchantactivityCreateModel.gmtEnd) &&
          Objects.equals(this.gmtStart, koubeiMarketingCampaignItemMerchantactivityCreateModel.gmtStart) &&
          Objects.equals(this.itemIds, koubeiMarketingCampaignItemMerchantactivityCreateModel.itemIds) &&
          Objects.equals(this.memo, koubeiMarketingCampaignItemMerchantactivityCreateModel.memo) &&
          Objects.equals(this.minCost, koubeiMarketingCampaignItemMerchantactivityCreateModel.minCost) &&
          Objects.equals(this.obtainManually, koubeiMarketingCampaignItemMerchantactivityCreateModel.obtainManually) &&
          Objects.equals(this.voucherInfo, koubeiMarketingCampaignItemMerchantactivityCreateModel.voucherInfo)&&
          Objects.equals(this.additionalProperties, koubeiMarketingCampaignItemMerchantactivityCreateModel.additionalProperties);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(countLimit, countLimitPerDay, countLimitPerUser, countLimitPerUserPerDay, crowd, deductAmount, externalCallbackUrl, externalUniqueId, gmtEnd, gmtStart, itemIds, memo, minCost, obtainManually, voucherInfo, additionalProperties);
    }
  
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      sb.append("class KoubeiMarketingCampaignItemMerchantactivityCreateModel {\n");
      sb.append("    countLimit: ").append(toIndentedString(countLimit)).append("\n");
      sb.append("    countLimitPerDay: ").append(toIndentedString(countLimitPerDay)).append("\n");
      sb.append("    countLimitPerUser: ").append(toIndentedString(countLimitPerUser)).append("\n");
      sb.append("    countLimitPerUserPerDay: ").append(toIndentedString(countLimitPerUserPerDay)).append("\n");
      sb.append("    crowd: ").append(toIndentedString(crowd)).append("\n");
      sb.append("    deductAmount: ").append(toIndentedString(deductAmount)).append("\n");
      sb.append("    externalCallbackUrl: ").append(toIndentedString(externalCallbackUrl)).append("\n");
      sb.append("    externalUniqueId: ").append(toIndentedString(externalUniqueId)).append("\n");
      sb.append("    gmtEnd: ").append(toIndentedString(gmtEnd)).append("\n");
      sb.append("    gmtStart: ").append(toIndentedString(gmtStart)).append("\n");
      sb.append("    itemIds: ").append(toIndentedString(itemIds)).append("\n");
      sb.append("    memo: ").append(toIndentedString(memo)).append("\n");
      sb.append("    minCost: ").append(toIndentedString(minCost)).append("\n");
      sb.append("    obtainManually: ").append(toIndentedString(obtainManually)).append("\n");
      sb.append("    voucherInfo: ").append(toIndentedString(voucherInfo)).append("\n");
      sb.append("    additionalProperties: ").append(toIndentedString(additionalProperties)).append("\n");
      sb.append("}");
      return sb.toString();
    }
  
    /**
     * Convert the given object to string with each line indented by 4 spaces
     * (except the first line).
     */
    private String toIndentedString(Object o) {
      if (o == null) {
        return "null";
      }
      return o.toString().replace("\n", "\n    ");
    }
  
  
    public static HashSet<String> openapiFields;
    public static HashSet<String> openapiRequiredFields;
  
    static {
      // a set of all properties/fields (JSON key names)
      openapiFields = new HashSet<String>();
      openapiFields.add("count_limit");
      openapiFields.add("count_limit_per_day");
      openapiFields.add("count_limit_per_user");
      openapiFields.add("count_limit_per_user_per_day");
      openapiFields.add("crowd");
      openapiFields.add("deduct_amount");
      openapiFields.add("external_callback_url");
      openapiFields.add("external_unique_id");
      openapiFields.add("gmt_end");
      openapiFields.add("gmt_start");
      openapiFields.add("item_ids");
      openapiFields.add("memo");
      openapiFields.add("min_cost");
      openapiFields.add("obtain_manually");
      openapiFields.add("voucher_info");
  
      // a set of required properties/fields (JSON key names)
      openapiRequiredFields = new HashSet<String>();
    }
  
   /**
    * Validates the JSON Object and throws an exception if issues found
    *
    * @param jsonObj JSON Object
    * @throws IOException if the JSON Object is invalid with respect to KoubeiMarketingCampaignItemMerchantactivityCreateModel
    */
    public static void validateJsonObject(JsonObject jsonObj) throws IOException {
        if (jsonObj == null) {
          if (KoubeiMarketingCampaignItemMerchantactivityCreateModel.openapiRequiredFields.isEmpty()) {
            return;
          } else { // has required fields
            throw new IllegalArgumentException(String.format("The required field(s) %s in KoubeiMarketingCampaignItemMerchantactivityCreateModel is not found in the empty JSON string", KoubeiMarketingCampaignItemMerchantactivityCreateModel.openapiRequiredFields.toString()));
          }
        }
        if (jsonObj.get("crowd") != null && !jsonObj.get("crowd").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `crowd` to be a primitive type in the JSON string but got `%s`", jsonObj.get("crowd").toString()));
        }
        if (jsonObj.get("deduct_amount") != null && !jsonObj.get("deduct_amount").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `deduct_amount` to be a primitive type in the JSON string but got `%s`", jsonObj.get("deduct_amount").toString()));
        }
        if (jsonObj.get("external_callback_url") != null && !jsonObj.get("external_callback_url").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `external_callback_url` to be a primitive type in the JSON string but got `%s`", jsonObj.get("external_callback_url").toString()));
        }
        if (jsonObj.get("external_unique_id") != null && !jsonObj.get("external_unique_id").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `external_unique_id` to be a primitive type in the JSON string but got `%s`", jsonObj.get("external_unique_id").toString()));
        }
        if (jsonObj.get("gmt_end") != null && !jsonObj.get("gmt_end").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `gmt_end` to be a primitive type in the JSON string but got `%s`", jsonObj.get("gmt_end").toString()));
        }
        if (jsonObj.get("gmt_start") != null && !jsonObj.get("gmt_start").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `gmt_start` to be a primitive type in the JSON string but got `%s`", jsonObj.get("gmt_start").toString()));
        }
        // ensure the json data is an array
        if (jsonObj.get("item_ids") != null && !jsonObj.get("item_ids").isJsonArray()) {
          throw new IllegalArgumentException(String.format("Expected the field `item_ids` to be an array in the JSON string but got `%s`", jsonObj.get("item_ids").toString()));
        }
        if (jsonObj.get("memo") != null && !jsonObj.get("memo").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `memo` to be a primitive type in the JSON string but got `%s`", jsonObj.get("memo").toString()));
        }
        if (jsonObj.get("min_cost") != null && !jsonObj.get("min_cost").isJsonPrimitive()) {
          throw new IllegalArgumentException(String.format("Expected the field `min_cost` to be a primitive type in the JSON string but got `%s`", jsonObj.get("min_cost").toString()));
        }
        // validate the optional field `voucher_info`
        if (jsonObj.getAsJsonObject("voucher_info") != null) {
          MerchantActivityVoucherInfo.validateJsonObject(jsonObj.getAsJsonObject("voucher_info"));
        }
    }
  
    public static class CustomTypeAdapterFactory implements TypeAdapterFactory {
      @SuppressWarnings("unchecked")
      @Override
      public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
         if (!KoubeiMarketingCampaignItemMerchantactivityCreateModel.class.isAssignableFrom(type.getRawType())) {
           return null; // this class only serializes 'KoubeiMarketingCampaignItemMerchantactivityCreateModel' and its subtypes
         }
         final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
         final TypeAdapter<KoubeiMarketingCampaignItemMerchantactivityCreateModel> thisAdapter
                          = gson.getDelegateAdapter(this, TypeToken.get(KoubeiMarketingCampaignItemMerchantactivityCreateModel.class));
  
         return (TypeAdapter<T>) new TypeAdapter<KoubeiMarketingCampaignItemMerchantactivityCreateModel>() {
             @Override
             public void write(JsonWriter out, KoubeiMarketingCampaignItemMerchantactivityCreateModel value) throws IOException {
               JsonObject obj = thisAdapter.toJsonTree(value).getAsJsonObject();
               obj.remove("additionalProperties");
               // serialize additonal properties
               if (value.getAdditionalProperties() != null) {
                 for (Map.Entry<String, Object> entry : value.getAdditionalProperties().entrySet()) {
                   if (entry.getValue() instanceof String)
                     obj.addProperty(entry.getKey(), (String) entry.getValue());
                   else if (entry.getValue() instanceof Number)
                     obj.addProperty(entry.getKey(), (Number) entry.getValue());
                   else if (entry.getValue() instanceof Boolean)
                     obj.addProperty(entry.getKey(), (Boolean) entry.getValue());
                   else if (entry.getValue() instanceof Character)
                     obj.addProperty(entry.getKey(), (Character) entry.getValue());
                   else {
                     obj.add(entry.getKey(), gson.toJsonTree(entry.getValue()).getAsJsonObject());
                   }
                 }
               }
               elementAdapter.write(out, obj);
             }
  
             @Override
             public KoubeiMarketingCampaignItemMerchantactivityCreateModel read(JsonReader in) throws IOException {
               JsonObject jsonObj = elementAdapter.read(in).getAsJsonObject();
               validateJsonObject(jsonObj);
               // store additional fields in the deserialized instance
               KoubeiMarketingCampaignItemMerchantactivityCreateModel instance = thisAdapter.fromJsonTree(jsonObj);
               for (Map.Entry<String, JsonElement> entry : jsonObj.entrySet()) {
                 if (!openapiFields.contains(entry.getKey())) {
                   if (entry.getValue().isJsonPrimitive()) { // primitive type
                     if (entry.getValue().getAsJsonPrimitive().isString())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsString());
                     else if (entry.getValue().getAsJsonPrimitive().isNumber())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsNumber());
                     else if (entry.getValue().getAsJsonPrimitive().isBoolean())
                       instance.putAdditionalProperty(entry.getKey(), entry.getValue().getAsBoolean());
                     else
                       throw new IllegalArgumentException(String.format("The field `%s` has unknown primitive type. Value: %s", entry.getKey(), entry.getValue().toString()));
                   } else { // non-primitive type
                     instance.putAdditionalProperty(entry.getKey(), gson.fromJson(entry.getValue(), HashMap.class));
                   }
                 }
               }
               return instance;
             }
  
         }.nullSafe();
      }
    }
  
   /**
    * Create an instance of KoubeiMarketingCampaignItemMerchantactivityCreateModel given an JSON string
    *
    * @param jsonString JSON string
    * @return An instance of KoubeiMarketingCampaignItemMerchantactivityCreateModel
    * @throws IOException if the JSON string is invalid with respect to KoubeiMarketingCampaignItemMerchantactivityCreateModel
    */
    public static KoubeiMarketingCampaignItemMerchantactivityCreateModel fromJson(String jsonString) throws IOException {
      return JSON.getGson().fromJson(jsonString, KoubeiMarketingCampaignItemMerchantactivityCreateModel.class);
    }
  
   /**
    * Convert an instance of KoubeiMarketingCampaignItemMerchantactivityCreateModel to an JSON string
    *
    * @return JSON string
    */
    public String toJson() {
      return JSON.getGson().toJson(this);
    }
  }
  
  